.bg {
    width: 100%;
    /* height: calc(100vh - 50px); */
    height: 100vh;
    background: url(../img/bg.jpg);
    background-size: cover;
    background-attachment: fixed;
    position: relative;
}

.bg>.chicken_Soup_for_the_Soul {
    color: #fff;
    width: 100%;
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
}

.bg h1 {
    font-size: 2em;
    letter-spacing: 2px;
    font-weight: 500;
    text-align: center;
    /* text-shadow: 0.1em 0.1em 0.05em #333 */
    text-shadow: 2px 2px 5px #333;
}

.bg .scroll_down {
    width: 30px;
    height: 30px;
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: rotate(45deg) translateX(-50%);
    animation: go linear 2s infinite;
    border-right: 3px solid #fff;
    border-bottom: 3px solid #fff;
    cursor: pointer;
}

@keyframes go {
    0% {
        bottom: 30px;
        opacity: .9;
    }

    50% {
        bottom: 10px;
        opacity: .3;
    }

    100% {
        bottom: 30px;
        opacity: .9;
    }
}



/* main */
main {
    padding-top: 50px;
    min-width: 1200px;
    height: 1500px;
}


/* 文章 */

article {
    padding-left: 280px;
    width: 100%;
    box-sizing: border-box;
}

.item {
    transition: all .5s;
    height: 260px;
    width: 100%;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 0 10px #eee;
    margin-bottom: 30px;
    background-color: rgba(255, 255, 255, .8);
}



/* 鼠标经过显示轮廓阴影 */
.item:hover,
.card:hover {
    box-shadow: 0 0 25px rgba(0, 0, 0, .5);
}

.item:hover .img img {
    transform: scale(1.5);
}

.item .img {
    box-sizing: border-box;
    border-radius: 5px;
    overflow: hidden;
    width: 45%;
}

.item .img img {
    transition: all .5s;
    height: 260px;
    transform: scale(1.2);
}

.item .article_content {
    box-sizing: border-box;
    width: 55%;
    margin-top: 20px;
    padding: 20px 50px;
    max-height: 180px;
    /* overflow: hidden; */
}

.item .article_info {
    font-size: 14px;
    padding-bottom: 10px;
    color: #666;
}

.release_time {
    padding-left: 20px;
    position: relative;
}

.release_time>i {
    position: absolute;
    top: 1px;
    left: 0;
    width: 16px;
    height: 15px;
    background: url(../img/iconfont/rili.png) no-repeat;
    background-size: cover;
}

.dividing_line {
    padding: 0 5px;
    font-weight: 600;
}

h3 {
    font-size: 20px;
    font-weight: 500;
    margin: 10px 0;
}

h3>a {
    display: block;
}

h3>a:hover {
    color: turquoise;
}

.article_content .content {
    color: #333;
    font-size: 14px;
    height: 95px;
    overflow: hidden;
}


/* 侧边栏 */
aside {
    float: left;
    width: 260px;
    text-align: center;
}

.card {
    background-color: rgba(255, 255, 255, .8);
    transition: all .3s;
    /* border: indianred 1px solid; */
    border-radius: 10px;
    overflow: hidden;
    /* background-color: skyblue; */
    /* height: 300px; */
    padding: 20px;
    padding-bottom: 30px;
    margin-bottom: 20px;
    box-shadow: 0 0 15px #ddd;
    position: relative;
    text-align: left;
}

.card_user {
    text-align: center;
}

#nickname {
    font-size: 20px;
    padding: 5px;
}

/* .card_tags {} */

.card_tags .card_tag a {
    float: left;
    padding: 0 8px;
    color: #ccc;
    font-size: 14px;
}

.card>h3 {
    padding-left: 30px;
}

.card>h3>i {
    position: absolute;
    left: 20px;
    width: 24px;
    height: 24px;
    background: url(../img/iconfont/biaoqians.png) no-repeat;
    background-size: cover;
}

.card_archives>ul>li {
    padding: 5px 0;
    padding-left: 5px;
}

.card_archives>ul>li>a {
    display: block;
    padding: 5px 0;
    transition: all .3s;
    color: #666;
}

.card_archives>ul>li>a:hover {
    background-color: paleturquoise;
}

.photo img {
    /* width: 100%; */
    width: 80px;
    height: 80px;
    border-radius: 50%;
    overflow: hidden;
    border: 1px solid #f0f0f0;
}

.user_state {
    height: 20px;
    line-height: 20px;
    font-size: 14px;
    color: #454545;
}

.blogs {
    padding: 15px;
}

.blogs_statistics {
    margin-right: 10px;
}

.blogs_statistics>a>div {
    padding: 5px;
}

.blogs_statistics>a {
    display: block;
}

.blogs_statistics .headline {
    font-size: 14px;
    color: #666;
}

.add_to_bookmark {
    height: 30px;
    line-height: 30px;
    margin: 0 10px;
    border: 1px solid #1a73e8;
    border-radius: 5px;
}

.add_to_bookmark a {
    display: block;
    position: relative;
}

.add_to_bookmark>a>i {
    width: 16px;
    height: 16px;
    display: block;
    position: absolute;
    background: url(../img/iconfont/shuqian.png);
    background-size: 100%, 100%;
    top: 50%;
    left: 12px;
    transform: translateY(-50%);
}

span.item_tags>span {
    font-size: 14px;
    padding-left: 20px;
    padding-right: 5px;
    position: relative;
}

span.item_tags>span>i {
    /* margin-top: 5px; */
    position: absolute;
    top: 1px;
    left: 0px;
    width: 16px;
    height: 16px;
    background: url(../img/iconfont/labelb.png) no-repeat;
    background-size: cover;
}


.card_archives>a {
    display: block;
    padding: 5px;
    color: cornflowerblue;
}

.card_archives>a:hover {
    color: coral;
}